Why not make her do the work and show you at least 10 or 15 designs she likes. She can go to google images or pinterest and find a wealth of quilts that appeal to her. From those, you can get an idea of what she means by a "romantic" quilt. It sounds like you already are adept at adapting a pattern to suit your needs-- so look at the commonalities among the quilts she likes, and you can come up with a pattern that is in your skill set but incorporates the elements she likes.
RST